[LU-17363] make install fails with "ln: failed to create symbolic link 'ko2iblnd.ko': File exists"

• Type: Bug
• Resolution: Unresolved
• Priority: Minor
• Severity: 3
• Assignee: WC Triage
• Reporter: Arshad Hussain

Description

I am reporting this as I see this. I will look into this in deep later.

Machine type:

Single node VM clinet/server running 4.18.0-425.3.1.el8_lustre.x86_64

/* Master head is on */

$ git log --format=oneline | head -1
1fceff05d85d41c104b44995ebd3bf4075df4126 LU-17312 tests: skip conf-sanity test_53 in interop

Reproduce:

 

$ sh autogen.sh
$ ./configure
$ make
$ make install
<snip large output>
make[5]: Entering directory '/root/lustre-release/lustre-release/lnet/klnds/in-kernel-o2iblnd'
(cd "/lib/modules/4.18.0-425.3.1.el8_lustre.x86_64/extra/kernel/net/lustre"; \
 ln -s in-kernel-ko2iblnd.ko ko2iblnd.ko)
ln: failed to create symbolic link 'ko2iblnd.ko': File exists

 

From config.log

configure:20050: checking if external o2iblnd needs to use Compat RDMA       
configure:20211: WARNING:                                                  
Auto detection of external O2IB failed. Build of external o2ib disabled.     
configure:20235: result: no    

Possible reason/solution?

Under : lnet/klnds/in-kernel-o2iblnd/autoMakefile.am
Should this be check and then link?
$(LN_S) in-kernel-ko2iblnd$(KMODEXT) ko2iblnd$(KMODEXT))